I want to open a popup window and disable the parent window. Below is the code that I am using;

function popup()
{

    popupWindow = window.open('child_page.html','name','width=200,height=200');
    popupWindow.focus();
}

For some reason, the parent window does not get disabled. Do I need some additional code OR what is the case?

Again, I am looking for something similar to what we get when we use showModalDialog()..i.e. it does not allow to select parent window at all..Only thing is I want to get the same thing done using window.open

Also please suggest the code which will be cross-browser compatible..

javascript popup
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